besides
Dia is like for the village people isn't it
or is "oerba" meant to be for the village people
Oerba Dia Fang & Oerba Dia Vanille are from the same village or place apparently
Dia Walruva wouldn't sound right for Lightning
I mean imagine their parents calling them:
"SERAH, Dia Walruva come down for dinner" , "Dia Walruva, SERAH do your homework"
how RIDICULOUS does that sound







